Cf. the NCWC edition, n. 42.
 Cf. Osservatore Romano, Feb. 18, 1942.
 Cf. Institutiones iuris publici ecclesiastici, 3rd edition (Typis Polyglottis
Vaticanis, 1948), I, 413.
 Cf. DB, 1500.
 Cf. Codicis iuris canonici
fontes, edited by Cardinal Pietro Gasparri (Typis Polyglottis Vaticanis, 1933), III, 489 f. The statement of Pope St. Leo I is to be found in his fourth sermon, that on the second anniversary of his elevation to the papal office.
 DB, 100.
 Cf. Adhemar D'Ales, La theologie de Saint Cyprien (Paris: Beauchesne,
1922), pp. 130 ff.
 Cf. Libri sex contra Parmenianum Donatistam, II, 2.
 Cf. ibid.,
 Cf. Ep. V.
 St. Thomas taught in his Summa contra gentiles,
Lib. IV, cap. 76, that, to conserve the unity of the Church, the power of the keys must be passed on, through Peter, to the other pastors of the Church. Subsequent writers also appealed to his teaching in the Summa theologica, in IIa-IIae,
q. 39, art. 3, in his Commentary on the Sentences of Peter the Lombard, IV, dist. 20, art. 4, and in his Commentary on the Gospel according to St. Matthew, in cap. 16, n. 2, in support of the thesis that bishops derive their power
of jurisdiction immediately from the Soverign Pontiff.
 Cf. Richard's Commentary on the Sentences, Lib. IV, dist. 24.
 Cf. D. Durandi a Sancto Porciano Ord. Praed. et Meldensis Epiccopi in Petri Lombardi sententias theologicas libri IIII (Venice, 1586), Lib. IV, dist. 20, q. 5, n. 5, p. 354.
 Cf. Summa de ecclesia (Venice, 1561), Lib. II, chapters 54-64, pp. 169-188. Turrecremata's thesis is identical with that set forth by Pope Pius XII, although his terminology is different.
The Holy Father speaks of the bishops receiving their power of jurisdiction "immediately" from the Holy See, i.e., from Our Lord through the Sovereign Pontiff. Turrecremata, on the other hand, speaks of the bishops as receiving their power of jurisdiction
"mediately" or "immediately" from the Holy Father, i.e., from him directly or from another empowered to act in his name.
 Cf. Cajetan's De comparatione auctoritatis Papae
et concilii, cap. 3, in Fr. Vincent Pollet's edition of his Scripta theologica (Rome: The Angelicum, 1935), I, 26 f.
 Cf. Sforza Pallavincini Histoire
de concile de Trente (Montrouge: Migne, 1844), Lib. XVIII, chapters 14 ff; Lib. XXI, chapters 11 and 13, II, 1347 ff; III, 363 ff; Hefele-Leclercq, Histoire des conciles(Paris: Letouzey et Ane, 1907 ff), IX, 747 ff; 776 ff.
 In Hartmann Grisar's edition of Laynez' Disputationes Tridentinae (Innsbruck, 1886), I, 97-318.
Cf. De Romano Pontifice, Lib. IV, chapters 24 and 25.
 Cf. Lib IV, cap. 4, in Migne's Theologiae cursus completus (MTCC) XII, 596 ff. Suarez
touches upon this matter in his treatise De Summo Pontifice in his Opus de triplici virtute theologica, De fide, tract. X, section I.
 Cf. Lib.
IV, q. 2, art. 5, in the Opera omnia (Antwerp, 1698), V, 302 ff.
 Cf. De clavibus Petri (Rome, 1560), Lib. I, cap 3, pp. 36 ff.
 Cf. In quartam sententiarum (Venice, 1569), dist. 20, q. 1, art. 2, conclusio 4, I, 991.
Cf. Scholastica commentaria in secundam secundae Angelici Doctoris D. Thomae (Venice, 1587), in q. 1, art. 10, dub. 5, concl. 5, columns 497 ff.
 Cf. In Lib.
I, cap. 4, n. 2 ff, in MTCC, XXV, 816 ff.
 Cf. Tractatus de Romano Pontifice (Rome, 1878), 373 ff.
 Cf. Tractatus de ecclesia Christi, 5th edition (Rome: The Gregorian University, 1927) I, 563 ff.
 Cf. Catholic Church and
Christian State (London, 1876), I, 168 ff.
 Cf. Defensio declarationis cleri Gallicani, Lib. VIII, chapters 11-15, in the Oeuvres completes (Paris,
1828), XLII, 182-202.
 Cf. Tractatus de ecclesia Christi, pars. II, sect. I, in MTCC, IV, 1043 ff.
 Cf. Relectiones undecim, in Rel. II, De potestate ecclesiae (Salamanca, 1565), pp 63 ff.
 Cf. In primam secundae
Sancti Thomae (Lyons, 1631), II, 31.